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ERIC Number: EJ1143261
Record Type: Journal
Publication Date: 2017-Jul
Pages: 9
Abstractor: As Provided
ISSN: ISSN-0031-9120
Investigation of the Rolling Motion of a Hollow Cylinder Using a Smartphone's Digital Compass
Wattanayotin, Phattara; Puttharugsa, Chokchai; Khemmani, Supitch
Physics Education, v52 n4 Article 045009 Jul 2017
This study used a smartphone's digital compass to observe the rolling motion of a hollow cylinder on an inclined plane. The smartphone (an iPhone 4s) was attached to the end of one side of a hollow cylinder to record the experimental data using the SensorLog application. In the experiment, the change of angular position was measured by the smartphone's digital compass. The obtained results were then analyzed and calculated to determine various parameters of the motion, such as the angular velocity, angular acceleration, critical angle, and coefficient of static friction. The experimental results obtained from using the digital compass were compared with those obtained from using a gyroscope sensor. Moreover, the results obtained from both sensors were consistent with the calculations for the rolling motion. We expect that this experiment will be valuable for use in physics laboratories.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Thailand
Grant or Contract Numbers: N/A